The writer must earn money in order to be able to live and to write, but he must by no means live and write for the purpose of making money.

Nothing can have value without being an object of utility.

The history of all previous societies has been the history of class struggles.

If anything is certain, it is that I myself am not a Marxist.

Catch a man a fish, and you can sell it to him. Teach a man to fish, and you ruin a wonderful business opportunity.

It is not history which uses men as a means of achieving – as if it were an individual person – its own ends. History is nothing but the activity of men in pursuit of their ends.